¿Qué significa wget -qO- 127.0.0.1?

He intentado buscar una respuesta en Google durante una hora y todavía no he tenido suerte. ¿Alguien sabe lo que significa este comando?

wget -qO- 127.0.0.1

Sé que wgetes la utilidad Linux "web get", y 127.0.0.1es localhost. Sin embargo, no tengo idea de lo que -qO-significa?

También creo que lo anterior es diferente, wget -q -O 127.0.0.1ya que una simple ejecución en el terminal me está dando un resultado diferente.

Nota: Estoy tratando de entender este comando de este Vagrant - Tutorial de inicio .

Muchas gracias de antemano.

Tu búsqueda es incompleta. Intenta man wget, que dice, en parte:

   -O file
   --output-document=file
       The documents will not be written to the appropriate files, but all will be concatenated together and written to file.  If - is used as
       file, documents will be printed to standard output, disabling link conversion.  (Use ./- to print to a file literally named -.)

       Use of -O is not intended to mean simply "use the name file instead of the one in the URL;" rather, it is analogous to shell
       redirection: wget -O file http://foo is intended to work like wget -O - http://foo > file; file will be truncated immediately, and all
       downloaded content will be written there.

       For this reason, -N (for timestamp-checking) is not supported in combination with -O: since file is always newly created, it will
       always have a very new timestamp. A warning will be issued if this combination is used.

       Similarly, using -r or -p with -O may not work as you expect: Wget won't just download the first file to file and then download the
       rest to their normal names: all downloaded content will be placed in file. This was disabled in version 1.11, but has been reinstated
       (with a warning) in 1.11.2, as there are some cases where this behavior can actually have some use.

       Note that a combination with -k is only permitted when downloading a single document, as in that case it will just convert all relative
       URIs to external ones; -k makes no sense for multiple URIs when they're all being downloaded to a single file; -k can be used only when
       the output is a regular file.

y

   -q
   --quiet
       Turn off Wget's output.

Para este tipo de preguntas, si tiene un navegador cercano, puede que le resulte útil usar explicahell.com (ya que las páginas de manual pueden ser bastante largas para encontrar los parámetros que le interesan):